Hello,
I am not sure what you mean by VA scans. I assume Virtual Agent? However, to change the metric in ILMT you would first import your latest part number file then reclassify the product to the correct metric.
https://www.ibm.com/support/knowledgecenter/SS8JFY_9.2.0/com.ibm.lmt.doc/Inventory/tutorials/checklist_main.html
#QRadar#Support#SupportMigration